42202620193 has 4 divisors (see below), whose sum is σ = 42242099860. Its totient is φ = 42163140528.

The previous prime is 42202620191. The next prime is 42202620197. The reversal of 42202620193 is 39102620224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9863071969 + 32339548224 = 99313^2 + 179832^2 .

It is a cyclic number.

It is not a de Polignac number, because 42202620193 - 2¹ = 42202620191 is a prime.

It is a super-2 number, since 2×42202620193² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42202620191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19738230 + ... + 19740367.

It is an arithmetic number, because the mean of its divisors is an integer number (10560524965).

Almost surely, 2^42202620193 is an apocalyptic number.

It is an amenable number.

42202620193 is a deficient number, since it is larger than the sum of its proper divisors (39479667).

42202620193 is a wasteful number, since it uses less digits than its factorization.

42202620193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39479666.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 42202620193 its sum of digits (31), we get a palindrome (42202620224).

The spelling of 42202620193 in words is "forty-two billion, two hundred two million, six hundred twenty thousand, one hundred ninety-three".